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Basic Dose Calculation Principles
What is a monitor unit (MU)?
linac
monitor
SSD
depth
water tank
“
1 MU
=
sig al of the
monitor
calibrated to
delivering a dose of
1 cGy
to a certain
reference point
in a
water
tank“
linac
“
1 MU will
NOT
correspond to 1 cGy
in
the same point when a
different geometry
is
considered”
patient
monitor